To obtain a Visa to attend this conference, some US embassies will request you to present a letter from the conference. The conference organizers will provide assistance letters for attendees who meet one or more of the following requirements:

  • Have submitted a technical paper for review 
  • Are the author/presenter of an accepted technical paper, workshop, poster/demo/Ph.D. Forum session 
  • Have registered for the conference


To request a visa invitation letter, please log into EDAS, click on 'My Papers' and search for the 'Visa Letter' column. Please apply for a visa sufficiently early to ensure you receive your visa in time.


Please contact one of the general chairs K. K. Ramakrishnan or Henning Schulzrinne with your request for a visa invitation letter.